This photo provided by the Toledo, Ohio Fire and Rescue Department shows a car at the bottom of a sinkhole caused by a broken water line in Toledo, Ohio on Wednesday, July 3, 2013. Police say the driver, 60-year-old Pamela Knox of Toledo, was shaken up and didn't appear hurt but was taken to a hospital as a precaution. (AP Photo/Toledo, Ohio Fire and Rescue Department, Lt. Matthew Hertzfeld)

U.S. Army SPC Skyler Ford is greeted by his wife Sara Ford during a homecoming ceremony for troops in the 1st Armor Brigade Combat Team, with the 3rd Infantry Division, Wednesday, July 3, 2013 at Fort Stewart, Ga. Units from the brigade were operating in many locations in Afghanistan during their 9-month deployment, and many are returning ahead of schedule as part of the drawdown. (AP Photo/Stephen Morton)

Photo: Stephen Morton, Associated Press

U.S. Army SPC Skyler Ford is greeted by his wife Sara Ford during a...

U.S. Army SPC Skyler Ford is greeted by his wife Sara Ford during a... Photo-4876453.65762 - SFGate

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Impersonators take part in an Abraham Lincoln look alike contest during ongoing activities commemorating the 150th anniversary of the Battle of Gettysburg, Wednesday, July 3, 2013, in Gettysburg, Pa. Union forces turned away a Confederate advance in the pivotal battle of the Civil War fought July 1-3, 1863, which was also the war's bloodiest conflict with more than 51,000 casualties. (AP Photo/Matt Rourke)

Photo: Matt Rourke, Associated Press

Impersonators take part in an Abraham Lincoln look alike contest...

Impersonators take part in an Abraham Lincoln look alike contest... Photo-4876454.65762 - SFGate

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The sun sets behind people riding carnival rides at State Fair Meadowlands, Wednesday, July 3, 2013, in East Rutherford, N.J. (AP Photo/Julio Cortez)

NEW YORK, NY - JULY 03: Men's world record holder Joey Chestnut (C) laughs as he is weighed at the Nathan's Famous Fourth of July International Hot Dog Eating Contest weigh-in ceremony on July 3, 2013 in the Brooklyn borough of New York City. The annual hot dog eating event is expected to draw up to 40,000 fans on July 4, in the Coney Island section of Brooklyn. (Photo by Mario Tama/Getty Images)